It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.

Source: https://blog-577157643503.mit-edu.top/post/0415862397

  1. <!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="390"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "blog-577157643503.mit-edu.top",cType: 'managed',cRay: '90f37fd0eae205ad',cH: 'WoJJW9uPrUbo7LZjfiuPoWwm8FQ46BrufRbh5U7uzfc-1739100331-1.2.1.1-OPxct6Bf6XdZeHLEJgqef95vbkX1hB1RCtfWRT45rh9IQYVGCW1a0FeoYMWjvoyB',cUPMDTk: "\/post\/0415862397?__cf_chl_tk=EPkl8BMcNUB1SeB7rNPo7_3qCWsc986eJNh2ndPytd4-1739100331-1.0.1.1-WtpAosfoRUw0glKcX2FNx6H3wYV1n3rrUt_Ar9xWXc8",cFPWv: 'g',cITimeS: '1739100331',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/post\/0415862397?__cf_chl_f_tk=EPkl8BMcNUB1SeB7rNPo7_3qCWsc986eJNh2ndPytd4-1739100331-1.0.1.1-WtpAosfoRUw0glKcX2FNx6H3wYV1n3rrUt_Ar9xWXc8",md: "MdfGZXM4n_Wq5v7CAUsqLonTMFcA_mOtx_d4iUFMkDY-1739100331-1.2.1.1-OpHNjEJ1mN41kIDQv73sVWQMwUX_JSfHYHz89N18Hos8j_Jm.0l.brqylr.hi6yIHFkiS0loiHT4WWftLfKrIylRr.tnMFfA8OxMIOhInW1u9gRyLXjrMDsOUN57tvhsQftSJ2URYyYRpts78dHEgxzZec0ASL8L6itDfxh8M3IDQxs8GG.R7euxPxPWQaJkAnzieSz9tP9vy4FgA81jUOKXj2SpPkJzcuVH0f3Qo6IqGtYxK0bY5dZHn_YAzCqkg7ZvF0x5hR2RXHNykaPpNIzWEBQRAWcUC99X2PEud8lsPw85Zj_PXXnRcWo.wiW3Nzw3YDqUv70FrI19ka4ns8moCBU_wuolvNMQa9I.ogntECPnSVPBedwBLjdMuOpRrCPQ2xopxWsjQCZI3ATff9yH6zrWq8QjI5QPSVnYSQ.ZCVTX8uLxwbFMf7OcSJ213NBs5aAm5RG4spdj3IMIBRqefo0hf9WZNnkP86KK_zFXE8NLTT.dZS4y7K5e6kHLbGaNXst172OCZWOB3R8C8q0XLWHYkOblyODnddi7qrQETjttxUsLfyTIh8pb_24GxlZ97yCokKx4FT1gCbj3JrXrjcQ44JToBjGOPa8Yf2mc4YnzZwhxTJnoeddii4lAvFoY_0GGGAv2NyEhT8ersY1viWGdcosIndE2y7JwrNJZcoYnihsjKa6yeYd3rL6.se9oYVxTVVeAkYnRpBXNpokyeEmMvgAEoPDnTvPHG_Qoe9wP9k3HQClgOBsDHE5ENVIdaeR.TLQrbHiPGqTgZd58pJvrwn7VPAag2M_FLXF9tA6mhak4fmqyEF9CzMdJFJ9fNiggeHrjuqhKfD0I.t4HXlmpdDUu9Kk.EQaqHmZsodwD.d1ql16f1G5cK5FNPeFeYNWK5fZkeTfEu0bywgiFVB0qjAMTtE.y0fnHPy7QWsAkojtOw8x03VOSvuraOBGshn49rTBDRJHyZno9cVXsdj37v8n_5kYNmxq8uciBcai5FQHQatWB7upOTsmdLmQ47c6Piv0ZjvdVrpzDmLIR5Vlb1ouLNxfqB2A60K5YcgDtkuiXiB6eDd5_iXXymDqqPv7ME4.tRGV3pa4GWdbfddUpp0wMzWxCUhWd.PU_2y36yWG.I45TiwsYfc9wXhqznuGo0gkW.5j9FBCpyg2r9wkz2aOAOQdAGCm8W5rzuBMpyQKGffx1udKC5Pr91VAOjU4bpvj6ouW0C5f9HU9ngFZ1XjrJqAI6DhpOmT3_0gk8m9BbBUV6Y28.CqhXOdoA5rtwwMhGk2ZLKMirI4p5hYXQhwUMwdZSh57n3YrYdVLxY6g57FMgwNxHzd3utVyxwPpsJW9eyCSr8aVvP1i5mKBTQnGj91EKIOTBwdx.AAejarUzIVFybm_Eaq9EXAAmsu5ZCcPXMhXK85brgaqKFzS23BHd3OvLF0.mdezN13PFeFRkC513wXNaWKyF3_tQy4M5rsySr9OG_ZGNRjqyRRROm_5_pIQ5iHPkRcqnEgmOHwHsqzS8eUBHYb5bCRFfIoZnyuZEHh2Ko3hwz5r3NCmBTSbiunRQWSXJHxjzYknvNASkSJlPzC_KlNi_9iZbTy3AEppH2otOTtdSJDARPLfLz7m1XYQb9cii36duQXVtE7KHEF5mLv6f7OZJZCObcm_tVepvbXmSCz8iBD8AYxZaidi0tZZL5beNoWnM5Yb0tVezpex47VzoYiNrtVlBotFOo1rbpZwFSnRpGNUkCFkuujsXmyNJ70gkSXj_RV7b.LXtH.vglZDB_KtU55k9AyB7k9cEmaXypTJ6gY261_kjT9P1I3L.lc3IYgAe6XGJio22lriDMAHejz5x4OFYXuCRAQJbuXVR5._SzKF.shLcOHhTXItVtp.i1o.YfjnU8EwWumeTCGmMHZmJPx5IXV5d7E7Z.RMt6RDDCQoGqvufMe3aWlSvzFqdWMyTE_81oUlCC01ie32K.aLsj7BmtFZjFAbj33zWdn1c7oVzO8OgfsZtUTPNemaskIsA5jC5aretaGc__2s5TemcLqjlnArpoPYZlkvPIZf4w.WyNGZsD2YE3TJwqr0LXxSwDWOpuPbgvaqHWW38zg6gA.ZCky4dGc6VyNz7skpWoNqbpz7BsdEEwfLjwqEOUh9q7F2ZDUxU2CKcmdJCGFuiWW6z1jUAHG6ydoH.SQy3DTom0rD6aIpdMEnQl3U7vfdq4TWdmVHe6G20KFV9OP62",mdrd: "D5GO8.d843okNad9BK8gQ3v1L6m3m2UMNcOvv6PlPEs-1739100331-1.2.1.1-ZhCLOQTvJLNpdmnnatqjv3xYis4h58on.VXde1k6cdrizAthP7oPvHVnYBzQGcV_mo9AQ.WWkn9feMA6NjsiD31xnT_aAZjhQ46g3Xlj2POGyQvPprs.mMFRDGxmxLtdv60CHVeEPPDlpSaL0HHdYxJqmPnG5U7JFqAYtDAgcUpFuBmdiOgLS_0Md.560fddSXziiMAej6XeUP1yWwKx9h3OfyTpwQFJkqNMjXv_7oXvJLlla6Mymtg2LmwfjtvevcBfSEvQrWES4KERGtKzzFAqICJnEoM5tLq6El4fwt8SJnsesCsTBTg9b_q49sIlNOZFX29Li9PXaimrN7hYv2UZkicxB3yo8KToxy040Fw0W0AiGnqY.JorKOehuNzWJpsOibSA4oJhn.BclAPQ2imGLVdAVlZ5Jzw3JfaFwz13TW88NWqw3MJoBmYUbJnop_M8jM5tI0geStc.05bRjnU8j1mkeFvEkCw1T0rVIARXnRiV7qYujMHFXgNHp8MrA4yWOEpgrA5FXhLZNJd1Yi3nI1RLPulBorp2U.dYGIYt31ZsOkpy5L5W4wP_mz.SniU4bOGKFsHBqJ4EycqluTSfuV1up2r086BlJhJYfu6Dxo5UpZ0wMYSKBn3K0levj_Ue9UsmPuEZZTj2mRYJRsRQZKg8fGXo5pb4_Rx2iarcQ03JErZK1sIpu6ij7a5pRJ.iyuCXICzkLBcT7S4WF2Ip8VFjBBDg9NYEuKkR_1x_GIK8hPf4PLHsKJ6WFaxDd9CUKOMs0bTO4yY_6vZgAW8EoClZKzhhkXX1QBBGDTT7LPzceNinp__4lQtPbu04azcyUOxAsxd38lFCj6FbRAKVki8hw3IVOhLnUJrG97Yjxwd6WA5aCUYy0yzfWRlallsdcalBCCm0TuXsZHvC_Q5_jpTck4gfGXYCuzdbVUdj2ftWFOOLJbdU9YGDa93sKgzTrM0MlLi3zyR3K5O_laS6hHuBMZEVoUi06wpbzeqWgC4Inwuodv0YJf4pvwJSal_hFske3OM8EzQ30706jbeC86dhVPjAmnBKgymPG_Mf6._20QivvAOj.wnOM1ublV9.0gRViTE2dHtRZoU0ea02uqpZpcax7Hh1z7iF9zCSy49ISs.cYR94Ir7kn9eHZt7QIr0rnQXpH_e94OeqQb7aXGC1RNenn9CBEYc_nWtNhma9faG.0LezlxrsF6xDH4NGGrAZ4lhdLcTCTfa242GSzLS2gandNBDU7sP9mUY2QlfRMV2NKqlNNf9zluM_bTaoHTlJoZFQ3tLDv9.g.nmX7KnTsbNvMqPKBh170VKGvh9PBgI0bXQpOz8fn.TjG16d9m70xG4dkHjPs.7MkbzjtXTMd4_1lglT.zKCBQIjShXXMSBlIBRHMQbCvL0EaLlw5Xen_Q.ltgPLSlnVfyz9rWvpFdAe52cDOuebfotJG51NfDOQoRvqG.zBAtjHtevzg_gN1Me8T3xuCnK6Zm0wxKR0haDYFtEJDhebtJziVKcw7sBqzksb5ZwuaObtNl67X2EvvtLiOaHV1Zj9_okrHm4GzoiaNJmtCsLhtQ71GuvPlVW9fK1IaSDEmSQKgzwurRtqI1GF8mKgXKktt9T1CbPkg2ZQt7FL82jZuBHNSRNW1n0uFTz0CYrtaHYJ2.9f0DKyWs9eUQ0mXoOhzCgDfmNdBsHWFxUR5E0m2iCTB5ulqU73D9IyMY6BTrzfv2gOKnLu3EMBL02ftGJ0sHhKA05gb7uRiMkAkWFp67A5wJxfm5._dAbgtAV5F3zWE.mRNWie4ZC_KqtUImvIK98YzVb0o0kk7cQrpH0K_qE"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=90f37fd0eae205ad';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/post\/0415862397?__cf_chl_rt_tk=EPkl8BMcNUB1SeB7rNPo7_3qCWsc986eJNh2ndPytd4-1739100331-1.0.1.1-WtpAosfoRUw0glKcX2FNx6H3wYV1n3rrUt_Ar9xWXc8" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda